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- function isIPv4(ip){
- if(typeof(ip)=="undefined"){return false;}
- var regex = ip.match(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/);
- if(regex!=null){
- ip = ip.split(".");
- if(ip.length!=4){return false;}
- if(parseInt(ip[0])==0 || parseInt(ip[3])==0){return false;}
- for(var i=0; i<ip.length; i++){if(parseInt(ip[i]) > 255){return false;}}
- return true;
- }
- return false;
- }
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